Identification of Rework Factors in Residential Projects in Mashhad Using the Delphi Method

Articles in Press

Document Type : Original Article

Authors

1 MSc Student of Construction Engineering and Management, Department of Civil Engineering and Environment, Khavaran Institute of Higher Education, Mashhad, Iran

2 Assistant Professor, Department of Civil Engineering and Environment, Khavaran Institute of Higher Education, Mashhad, Iran

10.22065/jsce.2024.424178.3261

Abstract

Rework has become one of the most common concerns in residential construction. It is also one of the primary causes of cost and time overruns in residential construction projects, requiring additional resources. Consequently, a substantial quantity of pollution is produced during the construction phase due to the use of significant amounts of resources for reworking. Considering the environmental and economic impacts, the risk of rework in projects should be minimized thorough comprehension of the contributing factors. This study's primary objective is to identify rework factors in residential projects in Mashhad. In order to accomplish the aims, rework-related literature was analyzed, resulting in identifying 76 rework factors. Among these factors, 29 key factors were selected from the researchers' point of view. Following this, the Delphi method was used to reach a reliable consensus among experts regarding the significance of selected factors. In the second round of the Delphi method, 15 experts in the field of construction who participated in this study reached a consensus regarding the importance of each factor. The results are: "Lack of experience and knowledge (client/supervisory team)", "Policy of selecting the lowest financial offer without considering technical competence", and "late changes of plan or scope by the client" in the client group; "Design errors and omissions (late designer input, limited designer skill and experience)" in the design team group; and "Skill and knowledge / insufficient training of the contractor's agents" in the contractor group. It is anticipated that the results of this study will assist project stakeholders and actors in comprehending the underlying factors of rework so that the implementation of their projects requires minimal design changes and rework in the construction phase.

Keywords

Main Subjects

Journal of Structural and Construction Engineering

Articles in Press, Accepted Manuscript
Available Online from 15 February 2024

Files

History

  • Receive Date: 01 December 2023
  • Revise Date: 03 May 2024
  • Accept Date: 15 February 2024

Share

How to cite

Statistics